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List: swatch-users
Subject: Swatch-users Digest, Vol 10, Issue 7
From: swatch-users-request () ucsb ! edu
Date: 2003-02-15 20:00:06
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Today's Topics:
1. Re: tail -f looses track of /var/adm/messages (Ed Schmollinger)
2. Re: tail -f looses track of /var/adm/messages
----------------------------------------------------------------------
Date: Fri, 14 Feb 2003 13:50:30 -0600
From: Ed Schmollinger <schmolli@frozencrow.org>
To: daniel.j.botz@Cummins.com
Cc: swatch-users@ucsb.edu
Subject: Re: [Swatch-users] tail -f looses track of /var/adm/messages
Message-ID: <20030214195030.GB1618@frozencrow.org>
In-Reply-To: <OF8DE4B3AF.AD5737AE-ON86256CCD.006680EA@cidc.cummins.com>
References: <OF8DE4B3AF.AD5737AE-ON86256CCD.006680EA@cidc.cummins.com>
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Message: 1
On Fri, Feb 14, 2003 at 01:06:55PM -0600, daniel.j.botz@Cummins.com wrote:
> I am aware of the problems with the "throttle" parameter in Swatch V3.0.4
> and the work around by using --read-pipe="tail -f /var/adm/messages."
>
> I run Swatch on a SUN box and by default, the OS has a crontab entry in
> root's crontab which rotates "/var/adm/messages" weekly using the script
> "/usr/lib/newsyslog." When this script runs, the tail process created by
> Swatch looses track of "/var/adm/messages."
>
> I'm curious if anybody else has ran across this and if so, how are you
> dealing with it.
You need to either use GNU tail (which can be set to follow a filename
instead of a file descriptor) or you need to restart swatch when the
syslog gets rotated out. Personally, I find it easier to just get rid
of that newsyslog monstrosity and do my own rotates. If you do it that
way, you just put your swatch restart in your rotate script and forget
about GNU tail. Either way should work just fine, though.
--
Ed Schmollinger - schmolli@frozencrow.org
"Ummm, well, OK. The network's the network, The computer's the computer.
Sorry for the confusion." -- Sun Microsystems
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Thanks for the input Ed.
I was thinking along the same lines but was wondering what other people
were doing.
Thanks again,
Dan
> ---------+---------------------------->
> > Ed Schmollinger |
> > <schmolli@frozenc|
> > row.org> |
> > >
> > 02/14/2003 13:50 |
> > >
> ---------+---------------------------->
>--------------------------------------------------------------------------------------------------------------------------------------------------|
| \
| | To: daniel.j.botz@Cummins.com \
| | cc: swatch-users@ucsb.edu \
| | Subject: Re: [Swatch-users] tail -f looses track of /var/adm/messages \
| >--------------------------------------------------------------------------------------------------------------------------------------------------|
On Fri, Feb 14, 2003 at 01:06:55PM -0600, daniel.j.botz@Cummins.com wrote:
> I am aware of the problems with the "throttle" parameter in Swatch V3.0.4
> and the work around by using --read-pipe="tail -f /var/adm/messages."
>
> I run Swatch on a SUN box and by default, the OS has a crontab entry in
> root's crontab which rotates "/var/adm/messages" weekly using the script
> "/usr/lib/newsyslog." When this script runs, the tail process created by
> Swatch looses track of "/var/adm/messages."
>
> I'm curious if anybody else has ran across this and if so, how are you
> dealing with it.
You need to either use GNU tail (which can be set to follow a filename
instead of a file descriptor) or you need to restart swatch when the
syslog gets rotated out. Personally, I find it easier to just get rid
of that newsyslog monstrosity and do my own rotates. If you do it that
way, you just put your swatch restart in your rotate script and forget
about GNU tail. Either way should work just fine, though.
--
Ed Schmollinger - schmolli@frozencrow.org
"Ummm, well, OK. The network's the network, The computer's the computer.
Sorry for the confusion." -- Sun Microsystems
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